Could be a few different things. Could be over feed causing lockout of certain nutes and shes trying to finish early. Could be too much light. A few leaves have burnt tips folding up and a couple other leaves clawing which could indicate too much light and cause it to change sooner. But from my personal experience, when this happened to me, it was pollinated. Hoping its one of the first 2 for ya, but if not, you at least get some free seeds to grow with. Some people will argue using the seeds if that's the case, but I've run several grows using seeds from plants that hermied or got pollinated without issue. They can be more temperamental, but still usable.
Im still learning myself, so curious to see what others say
Best of Luck, Happy Growing!